Meler PS 20 NON STOP+, Instruction Manual

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MA-5195-ENG PS20 NON STOP+ DRUM UNLOADER MANUAL MELTER OPERATION
4-19
Operating mode with external pumping control and internal speed control
In this operating mode, the pump is started and stopped via an external
contact signal from the main machine. The pump’s speed can be set manually
by the user.
The ‘External reference’ option must be deactivated and the ‘External
permission’ option must be activated.
Follow the steps below to use this operating mode:
1. On the start screen, press the pump status icon to access the Pumping
Control menu.
2. The status of the external permission is shown on the Pumping Control
menu. When the LED is green, the contact is closed and the pump can
be started up; when it is red, the contact is open and the pump will
remain off.
The following conditions must be met for the pump to start operating:
• The unit must be at ‘Temperature OK’.
• The ‘Pumping permission delay’ time must have elapsed.
• If ‘Pumping safety’ is activated, pumping must be enabled with the
‘STOP’ button (red LED off).
• There must be no alarms preventing pumping.
If a speed has been previously set, this value will be shown on the
display and the pump will start to rotate at the speed indicated provided
that all prior conditions are met. Otherwise:
3. Press speed and set the new rotation speed. The pump will then start
rotating at the set RPM.
The maximum full scale for admissible revolutions is 100 (we
recommend working at speeds of not less than 10 rpm and not greater
than 80 rpm). The minimum and maximum values that can be set are
established in the pump’s minimum and maximum speed alarms. See
the point ‘Menu 5. Pumping/Pumping alarms’.
The pump will stop whenever:
• The control board is disabled using the ON/OFF button.
• The pumping ‘STOP’ button is pressed (red LED is lit).
• When a variator error signal is activated.
• When the MAXIMUM RPM alarm is activated.
• When the MINIMUM RPM alarm is activated.
4. If the unit has a rear switch connector (optional), pumping can also
be activated from the device associated with this connector. Both the
‘External permission’ and switch must be connected to allow the pump
to be activated.
When the LED is green, the contact is closed and the pump can be
started up; when it is red, the contact is open and the pump will remain
off
HMI : S02001100 v1.0.106
TC : S02200100 v1.0.084
IO : S02102100 v1.0.106
IO : S02101100 v1.0.106
160 154
B
15:35
°C
08:31
2
00
154
1
85
1 2
B
A
VP
160
A
185 170 1
154 154 2
100 100
3
--- --- 4
5
42 42 6
1
HMI : S02001100 v1.0.106
TC : S02200100 v1.0.084
IO : S02102100 v1.0.106
IO : S02101100 v1.0.106
75 rpm
50 rpm
50 rpm
49 rpm
53 rpm
PUMP 1
Real speed:
External reference 1
External permission 1
Switch 1
Real speed:
External reference 2
External permission 2
Switch 2
PUMP 2
3
HMI : S02001100 v1.0.106
TC : S02200100 v1.0.084
IO : S02102100 v1.0.106
IO : S02101100 v1.0.106
50 rpm
50 rpm
Real speed: 73 rpm
External reference 1
External permission 1
Switch 1
Real speed: 76 rpm
External reference 2
External permission 2
Switch 2
PUMP 1
PUMP 2
HMI : S02001100 v1.0.106
TC : S02200100 v1.0.084
IO : S02102100 v1.0.106
IO : S02101100 v1.0.106
50 rpm
50 rpm
Real speed: 73 rpm
External reference 1
External permission 1
Switch 1
Real speed: 76 rpm
External reference 2
External permission 2
Switch 2
PUMP 1
PUMP 2
2
HMI : S02001100 v1.0.106
TC : S02200100 v1.0.084
IO : S02102100 v1.0.106
IO : S02101100 v1.0.106
90 rmp 30 s 10 rpm
min max
85 rmp 35 s 15 rpm
min max
Pump 1 speed alarm
5. Pumping
Pump 2 speed alarm
4
HMI : S02001100 v1.0.106
TC : S02200100 v1.0.084
IO : S02102100 v1.0.106
IO : S02101100 v1.0.106
75 rpm
50 rpm
50 rpm
49 rpm
53 rpm
PUMP 1
Real speed:
External reference 1
External permission 1
Switch 1
Real speed:
External reference 2
External permission 2
Switch 2
PUMP 2
HMI : S02001100 v1.0.106
TC : S02200100 v1.0.084
IO : S02102100 v1.0.106
IO : S02101100 v1.0.106
50 rpm
50 rpm
Real speed: 73 rpm
External reference 1
External permission 1
Switch 1
Real speed: 76 rpm
External reference 2
External permission 2
Switch 2
PUMP 1
PUMP 2
HMI : S02001100 v1.0.106
TC : S02200100 v1.0.084
IO : S02102100 v1.0.106
IO : S02101100 v1.0.106
50 rpm
50 rpm
Real speed: 73 rpm
External reference 1
External permission 1
Switch 1
Real speed: 76 rpm
External reference 2
External permission 2
Switch 2
PUMP 1
PUMP 2
4
HMI : S02001100 v1.0.106
TC : S02200100 v1.0.084
IO : S02102100 v1.0.106
IO : S02101100 v1.0.106
50 rpm
50 rpm
Real speed: 73 rpm
External reference 1
External permission 1
Switch 1
Real speed: 76 rpm
External reference 2
External permission 2
Switch 2
PUMP 1
PUMP 2
HMI : S02001100 v1.0.106
TC : S02200100 v1.0.084
IO : S02102100 v1.0.106
IO : S02101100 v1.0.106
50 rpm
50 rpm
Real speed: 73 rpm
External reference 1
External permission 1
Switch 1
Real speed: 76 rpm
External reference 2
External permission 2
Switch 2
PUMP 1
PUMP 2
4
ON